Question

Janine inflated 1 ball to a radius of 18 cm and another ball to a radius of 12 cm.

How much more air was in the larger ball?
Use 3.14 to approximate pi and express your answer in hundredths.

cm^3

Answer 1

@amistre64 @dmndlife24 @texaschic101 @Michele_Laino @JoannaBlackwelder @Thesmarterone @TheSmartOne

Answer 2

volume of 18 cm ball - volume of 12 cm ball

Answer 3

so pi18^2

Answer 4

\[V=\frac{4}{3}*\pi*r^3\]

Answer 5

1728x3.14x4/3

Answer 6

5425.92 x 4/3

Answer 7

can i turn 4/3 into a decimal?

Answer 8

4/3 = 1 1/3 = 1.3333333333333333333333333 for infinity

Answer 9

how u multiply it then?

Answer 10

\[\frac{5425.92*4}{3}\]

Answer 11

7234.56

Answer 12

Right. Now we have to subtract this from the volume of the 18 cm ball.

Answer 13

24416.64

Answer 14

Right. So all we have left is to find the difference between them. In other words, 24416.64-7234.56=?

Answer 15

17182.08

Answer 16

And that'd be your answer: 17,182.08 cm^3

Answer 17

thanks

Answer 18

No problem :)